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java ÕÒ³ö4λÊýµÄËùÓÐÎüѪ¹íÊý×Ö

 /**
* ÕÒ³öËÄλÊýËùÓеÄÎüѪ¹íÊý×Ö
* ÎüѪ¹íÊý×Ö£ºÎ»ÊýΪżÊýµÄÊý×Ö¿ÉÒÔÓÉÒ»¶ÔÊý×ÖÏà³Ë¶øµÃ£¬Õâ¶ÔÊý×Ö°üº¬³Ë»ýÒ»°ëµÄλÊý
* È磺1260 = 21*60
*/
public class Vampire {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub

String s="";
for(int i=1; i<10; i++){
for(int j=0; j<10; j++){
s += (10*i+j)+" ";
}
}
System.out.println(s);

String[] arr = s.split(" ");
System.out.println("Á½Î»ÊýµÄ¸öÊýΪ£º"+arr.length);

int a,b;
int count=0;
for(int j=0; j<arr.length; j++){
for(int k=0; k<arr.length; k++){
a = Integer.valueOf(arr[j]).intValue();
b = Integer.valueOf(arr[k]).intValue();
//ΪÄÜÒÔÁ½¸ö0½áβ
if(a*b<10000 && a*b>1000 && (a*b)%100!=0){
count++;
System.out.print(arr[j]+"_"+arr[k]+" ");
}
}
System.out.println();
}
System.out.println("the total number is "+count); //6370

}



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Ò»¸öJava·´Éä»úÖÆÀý×Ó

package test;
import java.lang.reflect.Method;
public class InvokeTest {
  /**
   *
   * main ·½·¨
   * @param args
   * void
   */
  public static void main(String[] args) {
    try {
    &nbs ......

Some Java based open


Database
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Firebird(suitable for embedded database)
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DB Tie
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java exception javaÒì³£»ã×Ü(1)

 java exception ½â¾ö·½°¸ - ÎÒµÄÒì³£Íø|Òì³£|exception 730 - org.hibernate.LazyInitializationException:could not initialize proxy 731 - ¾¯¸æ: Error setting value 732 - override and commit 733 - Building workspace has encountered a problem. Errors during build 734 - Could not open the editor: An ......

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 ¿ÉÒÔ°ÑÆÕͨµÄJava³ÌÐò×ö³ÉÕæÕýµÄexe,Ò²¾ÍÊǵ¥Ò»¸öexe¾Í¿ÉÒÔÔÚûÓа²×°JVMµÄ»úÆ÷ÉÏÔËÐС£ÕâÑùµÄ¹¤¾ß³£¼ûµÄÓÐJETºÍgcj.ǰÕßÊÇÊշѵ쬶øÇÒ×ö³öÀ´µÄexe»¹ÊÇÐèÒªÒ»¶Ñdll¡£ÍƼöʹÓÃgcj.ËûÓÐwindowsºÍLinux°æ£¬Ö±½ÓÏÂÔØzip°ü£¬²»ÐèÒª°²×°£¬ÀïÃæÓв»ÉÙÀý×Ó£¬Ò»Ð©buildµÄÅú´¦ÀíÎļþ¡£´ÓÔ­ÀíÀ´Ëµgcj×Ô¼ºÊµÏÖÁËJVM¹æ·¶£¬Ò²¾ÍÊÇÄ ......

java Áгöì³²¨ÄÇÆõÊýÁеÄǰnÏî

public class Fibonacci {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub

NumOfFibonacci(9);
}

public static int MyFibonacci(int i){
if(i>0) {
if(i == 1)return 1;
if(i == 2)return 1;
else return MyFibonacc ......
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